org.lunifera.sharky.m2m.webclient.SimplePushUI.java Source code

Introduction

Here is the source code for org.lunifera.sharky.m2m.webclient.SimplePushUI.java

Source

/**
 * Copyright 2013 Lunifera GmbH
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.lunifera.sharky.m2m.webclient;

import com.vaadin.annotations.Push;
import com.vaadin.annotations.Theme;
import com.vaadin.server.VaadinRequest;
import com.vaadin.shared.ui.label.ContentMode;
import com.vaadin.ui.Alignment;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Label;
import com.vaadin.ui.UI;
import com.vaadin.ui.themes.Reindeer;

@SuppressWarnings("serial")
@Theme(Reindeer.THEME_NAME)
@Push
public class SimplePushUI extends UI {
    private Label label;

    @Override
    protected void init(VaadinRequest request) {
        HorizontalLayout layout = new HorizontalLayout();
        setContent(layout);
        layout.setStyleName(Reindeer.LAYOUT_BLUE);
        layout.setSizeFull();

        label = new Label();
        label.setContentMode(ContentMode.HTML);
        layout.addComponent(label);
        layout.setComponentAlignment(label, Alignment.TOP_CENTER);

        new Thread(new Runnable() {
            int counter = 0;

            @Override
            public void run() {
                while (true) {
                    try {
                        Thread.sleep(1000);
                    } catch (InterruptedException e) {
                    }
                    counter++;

                    label.getUI().access(new Runnable() {
                        @Override
                        public void run() {
                            label.setValue(
                                    String.format("<h1>Running for %s seconds</h1>", Integer.toString(counter)));
                        }
                    });
                }
            }
        }).start();
    }
}